5 o8 



APOCYNACEAE 



2. N. aquaticum (Walt.) Kuntze. In ponds: N. J, and Del. to 

 Fla and Tex. 



Known only from Bridgeton, Cumberland Co., N. J. Not 

 recently collected. 



APOCYNACEAE 



Flowers large, solitary; vines. I. Vinca. 



Flowers small, cymose; erect or diffuse herbs. 2. Apocynum. 



i. Vinca L. 

 I. V. minor L. Escaped from gardens: E. N. Am. Native of 

 Europe. 



Fairly common as an escape from cultivation in most parts of 

 our range, frequently wanting. 



2. Apocynum L. 



Corolla 5-9 mm. long, its lobes spreading or recurved. 



Corolla 8-9 mm. long, pink, its tube narrowed in the 



throat. 

 Corolla 5-7 mm. long, white or pink; its tube not nar- 

 rowed in the throat. 

 Corolla-lobes more than half as long as the tube. 

 Corolla-lobes much shorter than the tube. 

 Corolla 3-4.5 mm. long, its lobes erect or nearly so. 



Leaves and cymes glabrous, or somewhat pubescent. 

 Leaves petioled, mostly narrowed at the base; 



flowers greenish. 

 Larger leaves sessile or nearly so, mostly cordate- 

 clasping at the base; flowers white. 

 Whole plant, including the cymes densely soft-pubescent. 



t. A. androsacmijolium. 



2. A. medium. 



3. A. Milleri. 



4. A. cannabinum. 



5. .4. sibiricum. 



6. A. pubescens. 



i. A. androsaemifolium L. (A. diver gens Greene). In fields and 

 thickets: Anticosti to Br. Col., Ga., Neb. and Ariz. 



Throughout the range, including the pine-barrens, but there 

 probably introduced; unknown at Cape May. 



2. A. medium Greene. {A. urceolifer G. S. Miller). In fields 



and waste places: Que. to D. C. and Iowa. 

 Throughout the range. 



3. A. Milleri Britton (A. speciosum G. S. Mill.). Dry soil, N. 



Y. to D.C. 



N. J. Farmingdale, Monmouth Co. 



Pa. Recorded from Delaware Co. 



4. A. cannabinum L. In fields and thickets: Anticosti to B. Col., 



Fla. and Lower Calif. 



